Invention Grant
US08419556B2 Nut, female thread machining device and female thread machining method
有权
螺母，内螺纹加工装置和内螺纹加工方法
- Patent Title: Nut, female thread machining device and female thread machining method
- Patent Title (中): 螺母，内螺纹加工装置和内螺纹加工方法
-
Application No.: US12547001Application Date: 2009-08-25
-
Publication No.: US08419556B2Publication Date: 2013-04-16
- Inventor: Yota Eguchi , Hiroki Fujiuchi , Naoki Takahashi , Toshihiro Murakawa
- Applicant: Yota Eguchi , Hiroki Fujiuchi , Naoki Takahashi , Toshihiro Murakawa
- Applicant Address: JP Tokyo
- Assignee: Honda Motor Co., Ltd.
- Current Assignee: Honda Motor Co., Ltd.
- Current Assignee Address: JP Tokyo
- Agency: Rankin, Hill & Clark LLP
- Priority: JP2008-217937 20080827; JP2008-217942 20080827; JP2008-217946 20080827
- Main IPC: B21D53/24
- IPC: B21D53/24 ; B21H3/08 ; B21K1/64
Abstract:
There is provided a nut having a thread portion having a female thread, a metallic plate portion having a base segment, and a hardness gradient portion provided between the thread portion and the metallic plate portion. The thread portion, metallic plate portion and the hardness gradient portion are monolithic each other, a metallographic structure of the metallic plate portion differs from a metallographic structure of the thread portion and a hardness of the hardness gradient portion is lower than a hardness of the thread portion and lowers from the thread portion toward the metallic plate portion.
Public/Granted literature
- US20100056284A1 NUT, FEMALE THREAD MACHINING DEVICE AND FEMALE THREAD MACHINING METHOD Public/Granted day:2010-03-04
Information query
